4.6 USB-UART Virtual COM Port

The WBZ451 Curiosity Board has an on-board MCP2200 (U18) acts as a USB to the UART converter with hardware flow control support and enables the user through the micro-B USB connector (J7) from the Host PC. MCP2200 supports UART baud rates from 300-1000 kbps. Voltage level translators are provided on signals between MCP2200 and WBZ451PE module for supporting target voltage from 1.9V – 3.6V when powered externally.

Table 4-4. USB Serial Converter Pin Assignment
Pin on MCP2200Pin on WBZ451PE ModuleDescription

TX

PA6, SERCOM0_PAD1

UART RX pin of the WBZ451PE module

RX

PA5, SERCOM0_PAD0

UART TX pin of the WBZ451PE module

RTS

PA4, SERCOM0_PAD3

UART CTS pin of the WBZ451PE module

CTS

PA3, SERCOM0_PAD2

UART RTS pin of the WBZ451PE module